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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Reduction identifier "+" type requirements"
href="https://bugs.llvm.org/show_bug.cgi?id=48584">48584</a>
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<th>Summary</th>
<td>Reduction identifier "+" type requirements
</td>
</tr>
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<th>Product</th>
<td>OpenMP
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Clang Compiler Support
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dalg24@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>a.bataev@hotmail.com, jdoerfert@anl.gov, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>The following code
```
#include <cstdio>
struct Point {
int x;
int y;
Point& operator+=(Point const &other) { x += other.x; y += other.y; return
*this; }
};
void find_enclosing_rectangle ( int n, Point const* points )
{
Point sump = {0, 0};
#pragma omp parallel for reduction(+: sump)
for ( int i = 0; i < n; i++ ) {
sump += points[i];
}
printf("sum = (%d, %d)\n", sump.x, sump.y);
}
```
yields `error: invalid operands to binary expression ('Point' and 'Point')`.
Reduction with “+” seems to require the binary plus operator but the OpemMP
specification
<a href="https://www.openmp.org/spec-html/5.1/openmpsu117.html#x152-1720002.21.5">https://www.openmp.org/spec-html/5.1/openmpsu117.html#x152-1720002.21.5</a> (table
2.11) only mentions operator+=</pre>
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